______________ greatly enhance water's ability to absorb heat, thereby reducing the amount of time necessary to extinguish the fire
a. Vegetable oils
b. Hydrocarbons
c. Extinguishing agents
d. Heat-encapsulating agents
d
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Shortwave diatherapy should never be applied over
A) growing epiphyseal plates B) a cardial pacemaker C) cancerous tissue D) all of the above
When used to control the flow of medical gases to a patient, how is a Bourdon gauge classified?
a. Fixed-orifice, variable-pressure flowmeter device b. Fixed-orifice, constant-pressure flowmeter device c. Variable-orifice, variable-pressure flow-meter device d. Variable-orifice, constant-pressure flow-meter device
A biological safety cabinet functions by
A) acting as a primary barrier between the specimen and the microbiologist. B) providing protection from external contamination. C) maintaining negative pressure to prevent distribution of aerosols. D) all of the above. E) both A and B
Which of the following is not a purpose of a manifold in central supply delivery systems?
A) Allows connections for multiple tanks in up to 10 rooms B) Connects the gas supply to a central system C) Allows full tanks to be accessed once other tanks are empty D) Provides a scavenger system for up to 10 rooms